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Batubara
Batubara

Variolite
Variolite



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Batubara
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Variolite

Properties of Batubara lan Variolite

Properties

atose

ukuran gandum

rengat

tilas

porosity

luster

kekuatan compressive

cleavage

kateguhan

tartamtu gravitasi

transparan

Kapadhetan

kapasitas panas tartamtu

resistance

 
1-1.5
medium kanggo nggoleki coarse grained
conchoidal
ireng
kurang keropos
kurang kanggo vitreous kanggo submetallic
-
-
-
1.1-1.4
opaque
1100-1400 g / cm 3
1.32 kj / kg k
tahan panas
 
6
-
conchoidal
putih kanggo werna abu-abu
kurang keropos
-
37.50 n / mm 2
-
2.3
2.8-3
opaque
2.9-3.1 g / cm 3
0.84 kj / kg k
tahan panas, meksa tahan, nyandhang tahan